4U6N | pdb_00004u6n

Crystal structure of Escherichia coli DiaA

• PDB DOI: https://doi.org/10.2210/pdb4U6N/pdb

• Classification: REPLICATION
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2014-07-29 Released: 2014-08-06 
• Deposition Author(s): Oakley, A.J., Lo, T.
• Funding Organization(s): National Health and Medical Research Council (NHMRC, Australia)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free: 
  0.198 (Depositor), 0.206 (DCC) 
• R-Value Work: 
  0.165 (Depositor), 0.173 (DCC) 
• R-Value Observed: 
  0.167 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of Escherichia coli DiaA

Oakley, A.J., Lo, T., Lewis, P.J.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 22.21 kDa 
• Atom Count: 1,499 
• Modeled Residue Count: 193 
• Deposited Residue Count: 204 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DnaA initiator-associating protein DiaA	A	204	Escherichia coli K-12	Mutation(s): 0  Gene Names: diaA, yraO, b3149, JW3118
UniProt
Find proteins for P66817 (Escherichia coli (strain K12)) Explore P66817  Go to UniProtKB:  P66817

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.91 Å
• R-Value Free:  0.198 (Depositor), 0.206 (DCC) 
• R-Value Work:  0.165 (Depositor), 0.173 (DCC) 
• R-Value Observed: 0.167 (Depositor) 

Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.49	α = 90
b = 73.82	β = 90
c = 106.37	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2014-08-06 
Deposition Author(s): Oakley, A.J., Lo, T.

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Funding Organization	Location	Grant Number
National Health and Medical Research Council (NHMRC, Australia)	Australia	APP1021479

Revision History  

• Version 1.0: 2014-08-06
  Type: Initial release
  
• Version 1.1: 2017-09-27
  Changes: Author supporting evidence, Derived calculations, Other, Source and taxonomy
• Version 1.2: 2020-01-08
  Changes: Author supporting evidence
• Version 1.3: 2023-09-27
  Changes: Data collection, Database references, Refinement description
• Version 1.4: 2024-10-23
  Changes: Structure summary